Superprism phenomena in planar photonic crystals
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We utilize the anomalous dispersion of planar photonic crystals near the dielectric band edge to control the wavelength-dependent propagation of light. We typically observe an angular swing of up to 10degrees as the input wavelength is changed from 1290 urn to 1310 mn, which signifies an angular dispersion of 0.5 degree/nm. Such a strong angular dispersion is of the order required for wavelength-division multiplexing systems. This is the first demonstration of the "superprism" effect in a planar configuration with a small lattice.
Wu , L , Mazilu , M , Karle , T & Krauss , T F 2002 , ' Superprism phenomena in planar photonic crystals ' IEEE Journal of Quantum Electronics , vol 38 , no. 7 , pp. 915-918 . DOI: 10.1109/JQE.2002.1017607
IEEE Journal of Quantum Electronics
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